diff options
| author | Jonathan Nieder <[email protected]> | 2009-12-28 19:38:27 +0000 |
|---|---|---|
| committer | Michal Marek <[email protected]> | 2010-01-13 13:27:24 +0100 |
| commit | 1373411ae4cd0caf2e1a35fb801dd9a00b64dea2 (patch) | |
| tree | 37acd3331e8a4683f0232ed4458ecf3921485270 | |
| parent | 7284ce6c9f6153d1777df5f310c959724d1bd446 (diff) | |
kbuild: really fix bzImage build with non-bash sh
In an x86 build with CONFIG_KERNEL_LZMA enabled and dash as sh,
arch/x86/boot/compressed/vmlinux.bin.lzma ends with
'\xf0\x7d\x39\x00' (16 bytes) instead of the 4 bytes intended and
the resulting vmlinuz fails to boot. This improves on the
previous behavior, in which the file contained the characters
'-ne ' as well, but not by much.
Previous commits replaced "echo -ne" first with "/bin/echo -ne",
then "printf" in the hope of improving portability, but none of
these commands is guaranteed to support hexadecimal escapes on
POSIX systems. So use the shell to convert from hexadecimal to
octal.
With this change, an LZMA-compressed kernel built with dash as sh
boots correctly again.
Reported-by: Sebastian Dalfuß <[email protected]>
Reported-by: Oliver Hartkopp <[email protected]>
Reported-by: Michael Guntsche <[email protected]>
Signed-off-by: Jonathan Nieder <[email protected]>
Cc: Michael Tokarev <[email protected]>
Cc: Alek Du <[email protected]>
Cc: Andrew Morton <[email protected]>
Signed-off-by: Michal Marek <[email protected]>
| -rw-r--r-- | scripts/Makefile.lib | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 0fe48cd91ffa..f9bdf264473d 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -219,8 +219,13 @@ for F in $1; do \ fsize=$$(stat -c "%s" $$F); \ dec_size=$$(expr $$dec_size + $$fsize); \ done; \ -printf "%08x" $$dec_size | \ - sed 's/\(..\)\(..\)\(..\)\(..\)/\\\\x\4\\\\x\3\\\\x\2\\\\x\1/g' \ +printf "%08x\n" $$dec_size | \ + sed 's/\(..\)/\1 /g' | { \ + read ch0 ch1 ch2 ch3; \ + for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \ + printf '%s%03o' '\\' $$((0x$$ch)); \ + done; \ + } \ ) quiet_cmd_bzip2 = BZIP2 $@ |